B01KGBL9A2 Opteka Scuba Diving Mask + Hand Grip + LED Flash Light + Scuba 4PC Filter for GoPro HERO4, HERO3+, Black, Silver and Similar Action Cameras

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Filters are only compatible with GoPro Hero4 Black & Silver and Hero 3+ Black & Silver
Anti-Fogging Tempered Glass: Keeps vision unobstructed in cold and humid environments making underwater activities clear and visible at all times.
Continuous Comfort: Soft silicone nose-bridge and no leak design ensures the mask minimizes fatigue even after prolonged use. The quick release mount makes transitioning to hand-held filming simple.
Multifunction LED Light: A built-in rechargeable battery with a wide-angle 300 lumen LED light makes darker shots crystal clear. With three modes available from High (Normal), Low (Power Saving) and Flash (SOS), the battery can last up to 6-hours.
Buoyant Materials: Bright colors and buoyant housings make it quick and easy to retrieve your camera